Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc8f3368d7cd114…

MALICIOUS

PDF

77.2 KB Created: 2021-04-20 08:56:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fc0eeaba689950884de88c5f0909d404 SHA-1: 17454e6af59d77012163a3ca918ef269c4d4bad4 SHA-256: 1bc8f3368d7cd11435a5d40e8506fca9ffad2e310b88e5da28a23deb40fe8dd6
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://botokaw.ru/strik?utm_term=stevens+320+12+gauge+tactical+stock PDF link annotation
    • https://kodejisejawap.weebly.com/uploads/1/3/2/3/132302923/dotawaba_turofakefime_kajinuveje_fojulimosixoxox.pdfIn PDF document text
    • https://xoverepidagagit.weebly.com/uploads/1/3/4/4/134469055/8377108.pdfIn PDF document text
    • http://ravasixojodari.mygamesonline.org/bexaxulabizuzomusasi.pdfIn PDF document text
    • http://telemprom.xyz/sous_le_ciel_de_paris_sheet_musicsokwk.pdfIn PDF document text
    • https://regurawuxafedan.weebly.com/uploads/1/3/0/7/130740517/saxododoviziwa_rokogotano.pdfIn PDF document text
    • http://accface.in/skyrim_how_to_get_vampire_lord_armorf39m7.pdfIn PDF document text
    • http://nopezimugabotik.mygamesonline.org/55817560379.pdfIn PDF document text
    • http://koxelovanalimu.getenjoyment.net/wisc_iv_administration_and_scoring_manual.pdfIn PDF document text
    • http://runmasten.online/mefamebu2mig.pdfIn PDF document text
    • https://nelajelax.weebly.com/uploads/1/3/2/7/132712676/0ecfbb3b.pdfIn PDF document text
    • http://snapchat-alert.com/pabizakuwejebefeg7rs9a.pdfIn PDF document text
    • https://fikozipe.weebly.com/uploads/1/3/4/8/134887908/9325424.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bixozebaxikapos.atwebpages.com/besobuwamosadijuzelodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d3a6a4b-6874-49c1-9870-fb21fac45416/2000_jeep_grand_cherokee_v8_specs.pdfIn PDF document text
    • http://revudipepofaten.myartsonline.com/special_relativity_for_dummies.pdfIn PDF document text
    • http://votixeju.onlinewebshop.net/gupufed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed6adae1-642c-40c8-a1e5-ffb038cd885a/premier_protein_caramel_canada_nutrition.pdfIn PDF document text
    • http://tarepos.onlinewebshop.net/37933669644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1930e95-c7b9-4e3c-add2-6cd7180af2dc/parexirosagokuxaro.pdfIn PDF document text
    • http://xotopusedewix.myartsonline.com/ap_reorganisation_act_2020_download.pdfIn PDF document text
    • http://gubawakelu.onlinewebshop.net/visejatezitojexelujupo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED40 5588 bytes
SHA-256: 30d5476eefee9da5d9363637b5e8023d532d0b582511ecc8b30903ff7c9bc704
font_01_sfnt_off00010063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10063 10844 bytes
SHA-256: 410812ffd156a9492ce3b91970d9b02fe00c13d4a02ef403d49758d7052929e8

Open this report in the interactive analyzer, or submit your own file for analysis.